So basically, you want to build a write-ahead-log before writing data to Kafka, and I think you're underestimating the effort to implement a WAL. If you don't

So basically, you want to build a write-ahead-log before writing data to Kafka, and I think you're underestimating the effort to implement a WAL. If you don't have a person that can manage Kafka, you almost definitely don't have the person to maintain a WAL.